package com.alipay.servlet;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradeQueryRequest;
import com.alipay.config.AlipayConfig;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * 支付宝
 * 订单查询
 */
@WebServlet(name = "QueryServlet",urlPatterns = "/QueryServlet")
public class QueryServlet extends HttpServlet {
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		//商户订单号，商户网站订单系统中唯一订单号
		String out_trade_no = request.getParameter("WIDTQout_trade_no");
		//支付宝交易号
		String trade_no = request.getParameter("WIDTQtrade_no");
		//请二选一设置
		//获得初始化的AlipayClient
		AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id,
				AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
		//设置请求参数
		AlipayTradeQueryRequest alipayRequest = new AlipayTradeQueryRequest();
		alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no +"\","
				+"\"trade_no\":\"" + trade_no +"\"}");
		//请求
		String result = null;
		try {
			result = alipayClient.execute(alipayRequest).getBody();
			//输出
			response.setContentType("text/html; charset=utf-8");
			PrintWriter out = response.getWriter();
			out.println(result);
			out.close();
		} catch (AlipayApiException e) {
			e.printStackTrace();
		}


	}
}
